Kardashians Declare WarYou Can't Sell Our Eyelashes!

12/4/2011 3:30 AM PST

Kardashians Declare War -- You Can't Sell Our Eyelashes!!

The Kardashian Klan only has eyes for themselves ... and that's why the family is threatening to take legal action against a woman who wants to use the family name to sell an eyelash-elongation product.

The product is called KardashianLash (a kind of eyelash-growing make-up thing) and the person behind the company -- named Sarah Ehrlich -- just filed a petition to trademark the name.

We spoke to Ms. Ehrlich -- who tells us, she wanted KardashianLash to help raise money to send Honduran orphans to cosmetology school (a worthy cause) ... and she didn't think the K's would mind.

But Kim & co do mind -- claiming no one ever asked them for permission ... and we're told the girls are planning to
fight her petition, claiming it's a blatant rip-off of their trademark.